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Finding the Fourth Proportional to 254,911.80, 382,472.10 and 112,681.80

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Solution

The fourth proportional to 254,911.80, 382,472.10 and 112,681.80 is: 169,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,911.80 : 382,472.10 = 112,681.80 : x
  2. Step 2: Convert to fraction form
    254,911.80/382,472.10 = 112,681.80/x
  3. Step 3: Cross multiply
    254,911.80x = 382,472.10 × 112,681.80
  4. Step 4: Simplify right side
    254,911.80x = 43,097,644,677.78
  5. Step 5: Solve for x
    x = 43,097,644,677.78/254,911.80
  6. Step 6: Final answer
    x = 169,068.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.